Home / 85,535.02-128,287.41-23,210.38

Finding the Fourth Proportional to 85,535.02, 128,287.41 and 23,210.38

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Solution

The fourth proportional to 85,535.02, 128,287.41 and 23,210.38 is: 34,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,535.02 : 128,287.41 = 23,210.38 : x
  2. Step 2: Convert to fraction form
    85,535.02/128,287.41 = 23,210.38/x
  3. Step 3: Cross multiply
    85,535.02x = 128,287.41 × 23,210.38
  4. Step 4: Simplify right side
    85,535.02x = 2,977,599,535.32
  5. Step 5: Solve for x
    x = 2,977,599,535.32/85,535.02
  6. Step 6: Final answer
    x = 34,811.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.